package com.company;

public class KnowLearn {
    public static void main(String[] args) {
        Fn("3");
        Fn(2, 3);
        Fn(1, 7, 9);
    }

    public static void Fn(String a) {
        System.out.print(a);
    }

    public static void Fn(float a, float b) {
        System.out.print(a + 2 + b  + '\n');
    }

    public static void Fn(double a, double b, double c) {
        System.out.print(a + 2 + b  + '\n');
    }
}
